video not showing in the pages

hello
I am trying to create a video gallery from flv files,when i am uploading the file it is creating the thumbnails but when I am opening the pages it is only showing the title and description but not the file,it is not playing the file and there is no error also.i have used the devlopment mode still i did not got any error.I got the code in this forum provided by UncleCheese, The code for the pages are given below.

If you just run $MyFLVComponent (in your case $Video), it will run the forTemplate() function on that object. I the case of an FLV object, that will return Player($defaultWidth, $defaultHeight);

So you do not need <% control Video %> in that case. If you use <% control Video %> you're looking for the $Video component ON your Video component, which of course doesn't exist.

Alternatively, you can step into the component using <% control Video %> and then run any number of functions that are in the FLV class, including $Player, $VideoThumbnail, or $VideoPopup.

Therefore your second example of having $Player in the Video control is correct. If you're just getting a "loading" message, you need to check for Javascript errors and make sure "dataobject_manager/code/flv/swfobject.js" is in your source and that the swfobject.embedSWF() function is running correctly.

thanks a lot UncleCheese,its really nice of you ..you have taken so much pain to explain me how to use the FLV functions.
I have tried all your suggest code,but it seems nothing is working.The file you have mention is also present there i'e
dataobject_manager/code/flv/swfobject.js

how to check whether the javascript is working corretly,
i ahve tried firebug it does not gives any error,i tried to check the html source of the resultant page and i found that no player is getting embedded..
the html code of the resultant page is